Henry D. Thoreau [electronic resource].
- Minneapolis : University of Minnesota Press, 1970.
- 47 p.
- University of Minnesota pamphlets on American writers ; no. 90 .
- University of Minnesota pamphlets on American writers ; no. 90. .
Electronic reproduction. Palo Alto, Calif. : ebrary, 2009. Available via World Wide Web. Access may be limited to ebrary affiliated libraries.